US 5,791,532 A · Process for reversing and end-shaping inflatable bodies

Abstract

A process is disclosed for reversing and end shaping inflatable bodies made of coated or uncoated fabric, in particular airbags, by using a device having a reversing pipe that receives the body or airbag; a die provided with a compressed air connection and an inflating hole and which pushes the body or airbag completely into the reversing pipe when it moves downwards and at the same time reverses the body or airbag; a sealing element that makes the top edge of the reversing pipe pressure-tight once the die has finished moving; and a collecting device in the area of the reversing pipe end in which the body or airbag is end shaped after being pushed out of the reversing pipe by a compressed air blast blown through the die so as to inflate and deploy the reversed airbag.

Claims28

Dependent claims

Process for reversing and finally shaping an inflatable body made of a fabric with or without a coating, for an airbag, comprising the steps of:

providing a reversing pipe for receiving a body or airbag;
providing a die with a compressed-air connection and a blow-out opening, and downwardly driving said die to completely push the body or airbag into the reversing pipe as the body or airbag is simultaneously being reversed;
providing a sealing element for sealing a top edge of the reversing pipe airtight after a movement of the die has been completed;
providing a collecting device within a zone of an end of the reversing pipe, and finally shaping the body or airbag in said zone after it has been driven by means of a blast of compressed air through the die from the reversing pipe in a reversed condition while inflating and unfolding.

1 more element

Dependencies are inferred from the claim text.

Process for reversing and end-shaping inflatable bodies

Life of this patent

Process for reversing and end-shaping inflatable bodies

Life of this patent

Abstract

Claims28